Globe-mounting ring



, Nov. 6, 1928. 1,690,563

W. UNDERWOOD GLOBE MOUNTING RING Filed Dec. 26, 1925 m firm/0r 1443/0/77 (fade/wand W WW Patented Nov. 6, 1%23.

UNITED STATES PATENT OFFICE.

"WESTERN UNDERWOOD, F LOS ANGELES, CALIFORNIA, ASSJ IGNOR 01E ONE-HALF T0 H. H. WALKER, OF LOS ANGELES, CALIFORNIA.

' GLOBE-MOUN TING RING.

This invention has to do with a ring useful in mounting glass globes, or the like, in bolders.

Glass globes and like devices, for instance,

6 globes of street lighting units, etc are usually retained in suitable holders by means of set screws, or the like, the set screws being carried by the holders and engaging lips formed on the globes. Considerable breakage occurs 10 in globes of this character, due largely to the mountings. The set screws, if set too tight, break the globes or hold them under pressure so that they break if they become heated and expand or if pressure, for instance, wind pressure, comes upon them. While, if the set screws are set too loose the globes are n t properly held and are subject to becoming released from theholders andto breakage due to movement in the holders. Further, the holders are usually unfinished castings, and, therefore,-do not present uniform or smooth supports for the globes.

. It is a general object ofthis invention to provide a device useful in mounting a globe above outlined.

It is an object of the invention to provide a device whereby a globe can be securely and effectively mounted in a usual holder without danger of being injured or broken, and which does not require any change or modification of the globe or holder.

Another object of this invention is to provide a device for mounting a globe in a holder I o c p out binding or becoming loose.

Another object of this invention is to provide a device for'mounting a globe in a holder so that it is uniformly supported and gripped.

Another object of this invention is to provide a device for use in mounting a globe in a usual holder so that the set screws of the holder can be made tight without danger of 1 breaking or binding the globe.

Another object of this invention is to provide a device of the character above mentioned which is simple and convenient to use and which doesnot interfere in any way with the appearance of the globe or holder.

The various objects and features of my invention will be best and more fully understood from the following detailed description.

of a typical preferred form and application of the invention, throughout which descripso that the globe is not subject to breakage as so that the lobe canexpand or contract withtion reference is had to the accompanying drawing, in which:

Fi g. 1 is a top plan view of the device provided by thisinvention; and

Fig. 2 is a fragmentary sectional view of a portion of the holder and globe, showing the device of the present invention employed in mounting the globe inthe holder.

In the drawings I have illustrated a simple and typical globe holder 10, comprising a flat annular seat 11, a vertical flange 12, extending upwardly from the outer edge of the seat 11, and set screws 13 carried by the flange to engage and hold a globe 14, or the like, that may be arranged in the holder. The globe 14,

illustrated inthe drawings, is provided with the usualannular lip 15, adapted to bearranged in the holder .10. The lip 15 is designed and constructed to be engaged and held by the set screws 13. Theuouter sideof the particular lip illustrated in the drawings is concave to receive the end portions of the set screws. i

The present invention provides a ring 18 to be employed at the mounting orpoint of.

connection between the holder and globe. Thering 18 is a split orended metal ring including, generally, alip engaging part 19 and a holder engaging part 20. The holder engaging part 20 is adapted to be supported and held in the holder 10, and is preferably a liplike'part adapted to be arranged in the holder to be supported. by the seat 11 and engaged by the set screws '13. It may be shaped, for instance, made concave, so that it receives the set screws and is, therefore, effectively held by them. The lower edge of the holder engaging part may be straight so that it will seat upon the seat 11 of the holder.

The lip engaging part '19 is intended to engage and hold the lip 15 of the globe. In order that the part 15 may be effective in gripping and holding the lip it is preferred that it be shaped and proportioned to more or less accurately and closely fit the lip, as I have illustrated in Fig. 2 of the drawings. For instance, when the lip of the globe is concave, as'I have shown in the drawings, it is desirable that the lip engaging part be correspondingly shaped. In accordance with the preferred form of the invention a seat 21 is provided at the lower edge of the lip engaging portion to engage under and support the globe. The seat may be in the form of a flange extending inwardly from the lower edge of the lip engaging part 20. The seat 21 is, of course smooth and regular so that it evenly and uniformly supports the globe.

In accordance with my invention the holder as ss P and pe igasins Par i h ring are connected or joined together in spaced relation. The parts 19 and 20 are preferably'arranged concentrically and one within the other, as I have shown in the drawment and relationing of-the parts 19 and QO it convenient to join orconnect their upper edges together by. a suitably curved part 22. The parts 19 and 20 are free to expand or contract moreor less independently of each other, so that they independently fit or engage the parts with which they are adapted to cooperate. The parts 19 and 20 are spaced a substantial distance apart so that they can be flexed on distorted considerably before interfering with one another. Further the parts 19 andQO are connected andirelated so that the lower. edge, of the part 20-projects somewhat below the seat part2l at the lower edge ofthe part 19 so that the seatpart 21 of the device does not engage or contact with theseat 11 oftheholder In practice. I prefe-rto form the device of sheet metal preferablyfrom a single piecev of sheet metal. The device can be advan tageously formed froma single p ece of sheet inetal by. spinning. I employ a. metal that is more or. less resilientso that the device may be] sprung around the lip of a globe and will operatein the mannerl am about. to

describe. hen I usethe term resilient I: mean a degree of resilieneesufliclent forsuccessful. operation of the device as. described. The ring. should have enough resilience so.

that it: can be. sprung onto. a. globe without being bent past its elastic limit and so that it can likewise be tightly applied to the globe.

In using thering provided by this invention it'is applied at the point ofbonnection.

between. the globeand holder. The ring is arranged around the lip of theholder so, that the. part. '19;;engages the lip and. the lower end of-thelipengages theseat. The holder ening. part of the ring is arranged in the holdeliso that its loweredge rests upon the seat 11. The, set screws l31are then tightened! against the part 20 causing the entire ring to contract and thereby grip the lip of the globe. The set screws may be tightened firmly against the part 20 without danger of in'urin flthe lobe or uttin it under excess Q i. 1... b 1,.

.pres su re. .T he construction of the device allows the p arts 19and QO to properly seat and adjust themselves to the holder and globe and allows for sufficient movement between the parts 19 and '20'so. that the part 20 can be sprung somewhat inwardly by the screws.

As a matter of fact the pressure of the set.

screws applied at a few points around the device causes a general and substantially unifornrcontract-ion of the device and is distributed so that it is appliedsubstantially uniformly around the lip of the globe. \Vith the pressure of the set' screws thus evenly distributed around the lip of the globe it; possible to set the screws particularly tight without danger of injuring the globe or putting it under uneven strain. Further, the part 19 andseat 20-, in conforming. closely to the shape 01": the lip, support theglobe linifor nly and effectively reenforce and protect the lip. I s I Having described onlya typical preferred form, ofinyinvention I do not wish to-limit; myself to-the specific de tai'ls-hereinabove set forth. but wish to reserve to .myselcli any changes orvariations that may appean to... those skilled in the art or fall within the. scope of the following claims.

Having describedmyinvention, claim:

1-. An insert for supporting a. globe in. a

holder including. a. single... body of. metal shaped to form a resilient split ring sub. stantially' U-shaped. in cross; sectionalconfi'guration one. side of. the. ring havingattange at its. outenedge extending in a direction transverse. of the. axis of; the. rin t.

2 A. single bodyotmetal shaped to.fonm

a resilientsplit ring for, use. in connection. with a globe. and holdentherefor, the. ring including. .two. spaced flange. like parts, one

within the other, and. having their u.pper.-

edges connected; together, one adapted to be. heldgby the-holder and; the other. adapted to hold the globe, the globev holding.parthaw. ing. aninwardly extending fl ange. to support thaglobe. x V .1 v

In witness that I claimv the foregoing I have hereunto. subscribed-.111 name this 13th. day .o fDeceinber, 1923.

' WE STERN. UNDERWQQD; 

